I have the clan limit enabled and am using Mevent's clan plugin. I have a limit of 50 Christmas trees per clan and one member put the 50 down and hit the limit, but another clan member is still able to place Christmas trees down.
{
"Auto-fill missing entities?": true,
"Disable building if no perms are assigned": false,
"Chat prefix": "<color=red>[Limits]</color>: ",
"A message when the player reaches the maximum limit of objects": "You have <color=red>reached</color> the limit of this object ({0})",
"Use teams for sum them constructions": false,
"Use clans?": true,
"Custom Prefabs, resourcepath & sprite(can be empty string)": {},
"Clans plugin for sum player constructions (Mevent, k1lly0u)": "Mevent"
}